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Finding the Fourth Proportional to 359,486.37, 539,229.74 and 122,831.37

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Solution

The fourth proportional to 359,486.37, 539,229.74 and 122,831.37 is: 184,247.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,486.37 : 539,229.74 = 122,831.37 : x
  2. Step 2: Convert to fraction form
    359,486.37/539,229.74 = 122,831.37/x
  3. Step 3: Cross multiply
    359,486.37x = 539,229.74 × 122,831.37
  4. Step 4: Simplify right side
    359,486.37x = 66,234,327,094.79
  5. Step 5: Solve for x
    x = 66,234,327,094.79/359,486.37
  6. Step 6: Final answer
    x = 184,247.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.